Form for molding concrete cisterns.



PATEN MAY n,

No. szmof J. H. WIEST.

FORM POR MOLDING CONCRETE CSTERNS.

APPLICATION FILED SEPT.30, 1905.

3 SHEETS-SHEET 2.

PATENTED MAY 8, 1906.

APEILIOATION FILED SEPT. 30,1905.

S SHEETS-SHEET 3.

65 metallic, and it is provided with a there being two couplers near the top and .two couplers near'- the bottom of the section and also two couplers at the middle of the section. The top and bottom couplers near .one edge of the section comprise-each a has; that is connectedto a plate a by a hinge the plate being securedtothe section by' rivets c and a hook F, that is tapering wedgelike and pivoted to the hasp. The couplers I0 near the other edge of the section comprise each an eye G, that is attached to a plate H, whlch is secured to the section by rivets c',

the plate serving as a gage for the adjacentsectlon of the form that overlaps the -edge of the section to which the plate H is attached. The has is adapted to receive the eye,and

the hoo is adapted to enter the eye and draw the hasp close to the plate H, therebylo'cking the two sections of the form together.

I, to which'isattached a pivot-stud and having rivet-holes e for securing the plate,

' which is attachedl to the form-section near the edge'at which the plates Hare attached,

there eing a hook J, having a hook-bar J', mounted pivotally on the stud d, the end o f thp stud being upset to form a head d', the couplers near the opposite-edges of the sectpns comprising each a block K, that 'is sedred fxedly to the form-section and havin a lip behind which the free end of the hookbar may be moved, the block having also a projection g to be en aged by the hook J.

A foot L, preferablgy of wood, is attached to the exterior ofthe lower end of eachformsection D, and the exterior of the upper part of each section is provided with a shoulder M,

preferably composedy of angle-iron, the shoulf der being located slightly below the top of 4o the section for supporting the bottom of another section when forming a silo.

The external form above described will not be required when forming-a cisterh-wall in a p The form for forming the interior face of a ci'sternor silo wall comprises a suitable number of sections N, each concavo-convex in cross-section and concave sideiwith couplers identical to those above described and arranged on the sections similarly to those on the exterior formsections. Each section N has a foot L', preferably of wood, attached to the concave side,.- at the lower end thereof,.the foot having a pm-hole h therein to receive a pin y'. The

upper end part of the section is provided with a ruiter-support O, that is secured against a number of spacing-blocks c', which are secured to the section, the top of the rafter-support being slightly lower than the top of the section.

The rafter-ring P preferably has inclined sides and has apertures 7c therein to-receive the -inner ends of the rafters, the ring being scopic parts Q an T he middle couplers compriseeach a late.

provided on the inner or` suitable bail Z for temporarily supporting it when connecting the rafters thereto and disconnecting themtherefrom.

The rafters com riseeach a pair of tele- Q', ,formed of,l channel- 7o iron or of other'suitable metallic members, the part Q having guides m secured thereto for guiding the part Q in thechannel thereof, the part Q being greater in diameter than the other part Said part Q is provided at an end thereof with'a lug` n for insertion between a support O and a side section N, while the adjacent end part ofthe rafter may rest upon the rafter-support. The outer end of the part Q has a relatively small projection p for 8o insertion in an aperture'k of the rafter-ring P, the projection having a keyhole g to re-. ceive a key r at the inner side of the ring. The part Q' has a number of pin-holes s, and the part Q has pin-holes s', 'receiving a lock- 8 5,l ingin t to prevent longitudinal movements of t e parts of the rafter -either one with repcet to the other one. The raft'er .has wings and R', having slots u therein, whereby they are adjustably secured by screws v to 9o the part Q, the free ends of the wings being adapted to rest upon the rafter-supports O. The roof-plates are designed to overlap one another adjustably, there being a suitable number of plates, as the inner plates S and outer plates S', all provided with springclips T, the inner plates having spring-cli s T' and the outer plates having gages 2, adapted to engage the rafter-sup orts O, the spring-clips having curved en parts w, adapted to press forcibl against adjacent plates that overlap the e ges of the plates'to which the cli s are attached.

The neckorms comprise two bandsvU-and U', one telescoping with the other for forming the inner face of the wall of the neck of the cistern, each -bandbeing split and provided with vears'ac and x', in which is a :right and left hand screw y for ex andin `or contracting the band, and two bands and'V', one telescoping with the other "for forming'` IIO the outer face of the cistern-neck,'each ban being. split and .having ears Zande/,ain Whic isascrewy'. Y 4 j In practical use a concrete' bottom llV'isu 5 first formed, andfthen'the side formor forms are' set up on l, thev bottom andthe sections thereof lockedtogether, after which-the side walls'X may be built up ofthe plasticmaterial. The ratersare to be adjusted toprope'r 12o len ths and placed upon the rafter-su ports auf? their inner ends -connecteditoget rby the rafter-ringp, then the roof-.plates areto be placed upon the rafters so as to extend from the top of the side-form sectionsN tothe 1 2 5 ring P, after 'which the inner neck-form should be adjusted as to length and placed upon the roof-plates. Thenthe eistern roof or dome Y may be formed, after which the outer neck-form may be placed uponthe 13o the ring may be suita dome, and vthe neck may thenbe formed, thus completing the .cistern....or silo. `After the pla'stic `material, becomes `sufficiently hardened the.'neckforms ma be removed, .then bly supported,the keys r'may beremoved, and thenthe pins t may be Withdrawn, so that the parts Q may be driven into "the pa'rt's` Q ofthe rafters, and thus released fromv 1the'rafterring. The outer ends of the rafters may then be rev moved from the rafter-su ports 0,. after which the roof-plates may. e removed, and then the sections of thejside form or forms may be uncoupled and the sections removed, after which a coat of cement may be floated on the interior of the cistern-Walls.'l

` Havin thus described'the invention, what 1.- A cistern-form-including side sections, a raftrrrng having apertures therein, rafters comprising each a stationaryspart foi engagement with aside section and a rela-f tivel movablepart having a rejection in-v rovided with rafter-supports, a rafter-ring aving apertures therein, rafters comprising each a stationary -part'having a lug for engagement with a reiter-support and a relatively movable part telescopinginto 'the sta-v tionar part and provided with a projection inserti 1e into the apertures of ie rafterring, and a pin removably connected withthe two parts of the rafter.

3. A cistern-form including side -sections provided near the to s thereoflwith'raftersupports, a rafter-ring iaving apertures therein, rafters each comprising a stationary part having a. lug for engagement with the raftersupports and a relatively movable part having a'projection provide with a keyhole and insertible into the apertures of the rafter-V ring, and keys for insertion into the keyholes.

4. A cistern-form including side sections, a rafter-ring,l contractible raftersfor engagement with the sidesections 4and also with the rafter-ring, roof-plates having gages for engagement withl the side sections, and roofplates-having spring-clips for engagement with adjacent rooflates. g

5. A cistern or si o form including interior side sections, gages'secured to the-side sections and having stationary coupling devices attached thereto, movable coupling devices attached also to the side sections for engageinentj with the stationary devices of the gages ofl adjacent sections, spacing-blocks secured t'o the sections, and rafter-supl'iort-s attached. to the spacing-blocks.

6, 'In a cistern-form, the combination of side sections each having a, foot attached thereto provided with a pin-hole, spacingblocks secured to the side sections, 'supports side section and into the spaces between the spacing-blocks, a'rafter-ring,'a" pluralitjv ofrafters, anda plurality of roof-plat es.

attached.. to the spacing-blocks, and pins in- -sertible through the holes in the feet of the 7L In a cistern-forni, the combination of side sections, a rafter-rin a plurality of rafters, a plurality of roof-p ates for the rafters having each a plurality of spring-cli s secured-thereto formed with a portion t. ereof curved a ainst the roof-plate, 'and a plurality of roof-p ates vhavin each a spring-clip also a gage secured t creto.

8; In a cistern-form, the combination of side-form sections, a rafter-ring having openings in the Wall thereof, rafters comprising each a stationary art having a pin-hole therein and having a so a bearing end'for engagement with a side section, a pair of Wings attached tothe stationary part and having and .bearing ends also for engagement with a side section, a relatively movable part having a pin-hole therein vand-telesc/'oping with the s tationary part and provided with a projection insertible in an opening ofthe rafter-iing,

f and a. pin insertible into the pin-holes ofthe two parts of the rafter;

9...In a cistern-form, the combination of' side-forin sections, a rafter-ring, rafters conrprising'each a .stationary part forconn'ecting with a side -sectioiiand having a wing adjustablv lattached thereto also for connecting with a side section, a relatively movable part tlescopi'ng With the 'stationary part for enf gageinent with the rafter-ring, and a pin con-V nected removably with the :two parts of the rafter. i y

10. In a cistern-form, the combination of a plurality of inner side sections, rafter-supg ports attached to the side sections, a-rafterring having inclined sides "and apertures therein, rafters having each a rejection insertible into the apertures of t e rafter-ring and having also a ylug for engagement with the after-supports, a bail connected to the rafter-ring, roof-plates to .be supported .by the rafters, and' neck-forinsto be supported by the roof-plates.

side-form sections provided each with a rafsidcs and apertures therein, rafters-each comprising a stationary part for connection with IOO 11. In a cistern-form the combination of 'ter-support, a rafter-ring having inclined a rafter-support and apart telescoping in the stationary part and having a pro]ect1on insertible in either one of the a iertures of the raftcr-ring, and roof-plates t ..be supported by the rafters.

12. In a cistern-form, the combination of side-form sections, a rafter-ring, a lurality ol" rafters, and a lurality of1'oof-p ates to be supported by t ie rafters and rovided each with a gage attached to the unc er side.thereof for engagement with the sideforni sectio1is.

g an end thereof, a

la rafter-ring having the 13. In a cistern-form, the combination of side-form sections, a rafter-ring, Aa plurality of rafters for connecting to the side-form sections and the rafter-ring, and a plurality of roof-plates to be su ported bythe rafters and provlded each with) a'sprin -clip secured at one end thereof thereto and aving a portion thereof curved against the roof-plate for engaging an adjacent roof-plate.

14. In a cistern-form, the combination of side-form sections with couplerstherefor, a rafter-ring, rafter-supports attached to the side-form sections, rafters each comprising a part for engagement with the rafter-supports and having a in-hole therein, a part movably connectedbwith the stationary part for engagement with the rafter-ring and having a pin-hole therein, and a pin insertible into thefpin-holes of the tWo parts of the rafter.

15. In a cistern or silo form, the combination of a rafter comprising a part having a pin-hole therein and provided With alug on part telesco in With the other part and having a pin-hole t erein and provided at an end thereof with a projection having a keyhole therein, a pin insertible in the pin-holes of the two parts, and a key insertible in the keyhole.

. 16. In a cistern or silo form, the combination of a plurality of rafters havin each a telescoping part provided at an eniI thereof With a projection having a keyhole therein, Wall thereof inclined to the planes of the ends of the rin and rovided With openings in the Wall t ereo receiving the projections of the rafter parts,

and keys in the keyholes of the projections and bearing against the inclined Wall of the ring, the axes of the rafters being approximately at right angles to the contiguous inclined Walhf the rlng.

17. In a cistern or silo form, the combination-with a plurality of telescoping rafters each having a part provided with a projection at an vend thereof provided With a keyhole, of a rafter-ring having openings in the wall thereof receiving the )rojections removably and-provided With a bail for the temporary support thereof, and keys removably inserted in the keyholes of the projection bearing against the Wall of the ring.

18. In a cistern or silo form, the combination of a plurality of lower inner side sections with couplers therefor, rafter-supports attached to the side sections, a plurality of upper inner side sections withl couplers therefor and resting on the rafter-supports and having rafter-supports attached thereto, a rafterring having openings therein, rafters having lugs engaging the rafter-supports of the upper inner side section and havlng also projections inserted removably in the openings of the rafter-ring, roof-plates supported by the rafters, and neck-forms supported by the roofplates, With outer side sections arranged about the lower and upper inner side sections Y In testimony whereof I affix my signature in presence of two Witnesses.

JONAS H. WIEST.

Witnesses:

E. T. SILvIUs, S. SNIDER. 

